Partition and packing material therewith

ABSTRACT

A partition includes a rectangular bottom plate, first partition segments connected to first sides of the bottom plate opposite from each other, first and second folding lines, first slits formed, facing away from the bottom plate, in edges of the first partition segments, second partition segments connected to second sides perpendicular to the first sides of the bottom plate, third and fourth folding lines, and second slits formed, facing the bottom plate, in edges of the second partition segments. The first and the second partition segments are held erect on the bottom plate by bending the first partition segments perpendicularly along the first and second folding lines to make them erect in an L shape; bending the second partition segments perpendicularly along the third and the fourth folding lines to make the second partition segment erect in an L shape; and making the second slits engage with the first slits.

INCORPORATION BY REFERENCE

This application is based upon and claims the benefit of priority fromthe corresponding Japanese Patent Application No. 2018-216136 filed onNov. 19, 2018, the entire contents of which are incorporated herein byreference.

BACKGROUND

The present disclosure relates to a partition built by bending onesheet, and also relates to a packing material using such a partition.

As a conventionally common method for packing electronic appliances andthe like, what is called assembled packing is widely used in whichpartitions are arranged in cardboard boxes to pack a plurality of partstogether.

For example, according to a known method for packing a motor, two kindsof strip-like partitions with slits are combined into a lattice andarranged inside an outer cardboard box to store the motor in thelattice. There is also a known plastic cardboard box in which oppositesides have a double wall structure and the inner side of the double wallintegrally connected at the top with the inner wall located on theoutside of the double wall has a plurality of perpendicular partitiongrooves so that partition segments can be inserted in appropriategrooves according to the dimensions of an industrial component.

SUMMARY

According to one aspect of the present disclosure, a partition includesa bottom plate, a pair of first partition segments, a first foldingline, a second folding line, a pair of first slits, a pair of secondpartition segments, a third folding line, and a fourth folding line,second slits, and the partition is built using one sheet material. Thebottom plate is in a rectangular shape having a pair of first sidesopposite from each other and a pair of second sides perpendicular to thefirst side. The pair of first partition segments is arranged along thepair of first sides. The first folding line extends from each of a pairof first vertexes of the bottom plate located on one diagonal positioneach other to an end point located on each of the pair of first sidesand which connects the bottom plate and each of the pair of firstpartition segments together. The second folding line extendsperpendicularly to the first folding line from end point of the firstfolding line to an outer edge of the first partition segment. The pairof first slits is slit from the outer edge of each of the pair of firstpartition segments inward. A pair of second partition segments isarranged along the pair of second sides. The third folding line extendsfrom each of a pair of second vertexes of the bottom plate located onanother diagonal position each other to an end point on each of the pairof second sides and which connects the bottom plate and each of the pairof second partition segments together. The fourth folding line extendsperpendicularly to the third folding line from the end point of thethird folding line to an inner edge of the second partition segments.The pair of second slits is slit from the inner edge of each of the pairof second partition segments outward. The pair of first partitionsegments and the pair of second partition segments are held erect withrespect to the bottom plate in an L shape as seen in a plan view bybending each of the pair of first partition segments perpendicularlyalong the first folding line and the second folding line to make thefirst partition segments erect in an L shape and to arrange each of thepair of first partition segments on the bottom plate; bending each ofthe pair of second partition segments perpendicularly along the thirdfolding line and the fourth folding line to make the second partitionsegments erect in an L shape and to arrange each of the pair of secondpartition segments on the bottom plate perpendicularly to the pair offirst partition segments; and making the pair of second slits engagewith the pair of first slits each other.

This and other objects of the present disclosure, and the specificbenefits obtained according to the present disclosure, will becomeapparent from the description of embodiments which follows.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a developed view of a partition according to a firstembodiment of the present disclosure;

FIG. 2 is a plan view showing a procedure for building the partition ofthe first embodiment, illustrating a state where first partitionsegments are bent upward perpendicularly along second folding lines;

FIG. 3 is a plan view showing the procedure for building the partitionof the first embodiment, illustrating a state where the first partitionsegments are bent perpendicularly from the state in FIG. 2 along a firstfolding lines in such a direction as to overlap a bottom plate;

FIG. 4 is a plan view showing the procedure for building the partitionof the first embodiment, illustrating a state where the first partitionsegments are bent upward perpendicularly from the state in FIG. 3 alongfourth folding lines;

FIG. 5 is a plan view showing the procedure for building the partitionof the first embodiment, illustrating a state where the second partitionsegments are bent perpendicularly from the state in FIG. 4 along thirdfolding lines in such a direction as to overlap the bottom plate andsecond slits are engaged with first slits to complete the building;

FIG. 6 is a perspective view showing a state where the partition of thefirst embodiment is arranged in an outer packing box;

FIG. 7 is a developed view of a partition according to a secondembodiment of the present disclosure;

FIG. 8 is a plan view showing a state where the building of thepartition of the second embodiment is completed;

FIG. 9 is a developed view of a partition according to a thirdembodiment of the present disclosure; and

FIG. 10 is a plan view showing a state where the building of thepartition of the third embodiment is completed.

DETAILED DESCRIPTION

Hereinafter, with reference to the accompanying drawings, embodiments ofthe present disclosure will be described. FIG. 1 is a developed view ofa partition 1 according to a first embodiment of the present disclosure.In FIG. 1, cuts are indicated by solid lines, and folding lines areindicated by broken lines. The partition 1 is built by transforming onesheet material (for example, a cardboard sheet) punched out into apredetermined shape as shown in FIG. 1, and is generally composed of abottom plate 2, first partition segments 3 a and 3 b, and secondpartition segments 4 a and 4 b, which are connected together via firstto fourth folding lines L1 to L4.

The bottom plate 2 has a rectangular (square) shape. To first sides 2 a(the left and right sides in FIG. 1) of the bottom plate 2 opposite fromeach other, the first partition segments 3 a and 3 b are connected viathe first folding lines L1. To second sides 2 b (the top and bottomsides in FIG. 1) of the bottom plate 2 perpendicular to the first sides2 a of the bottom plate 2, the second partition segments 4 a and 4 b areconnected via the third folding lines L3. The bottom plate 2 has firstvertices 2 c on one diagonal across its center. The first folding lineL1 extends from the first vertex 2 c (a start point) to a position (anend point) at one third of the length of one side along the first side 2a. The bottom plate 2 has second vertices 2 d on the other diagonalacross its center. The third folding line L3 extends from the secondvertex 2 d (a start point) to a position (an end point) at one third ofthe length of one side along the second side 2 b.

On the first partition segment 3 a or 3 b, the second folding line L2 isformed. The second folding line L2 extends from one end (the end point)of the first folding line L1 perpendicularly to the first folding lineL1 to an outer edge 3 a 1, 3 b 1 of the first partition segment 3 a or 3b. On each of the second partition segments 4 a and 4 b, the fourthfolding line L4 is formed. The fourth folding line L4 extends from oneend (the end point) of the second folding line L2 perpendicularly to thesecond folding line L2 to an inner edge 4 a 1, 4 b 1 of the secondpartition segment 4 a or 4 b. The dimension d1 of the first partitionsegment 3 a or 3 b from the second folding line L2 to the tip end andthe dimension d2 of the second partition segment 4 a or 4 b from thefourth folding line L4 to the tip end are equal to the length of oneside of the bottom plate 2. The dimensions w1 and w2 of the firstpartition segment 3 a or 3 b and the second partition segment 4 a or 4 bin the width direction (the direction perpendicular to the longitudinaldirection) are each approximately one third of the length of one side ofthe bottom plate 2.

In the outer edge (facing away from the bottom plate 2) of the firstpartition segment 3 a or 3 b, two first slits 5 which are open outwardare formed. In the inner edge (facing the bottom plate 2) of the secondpartition segment 4 a or 4 b, two second slits 6 which are open inwardare formed. The first slits 5 are formed at such positions as to dividethe part of the first partition segment 3 a or 3 b from the secondfolding line L2 to the tip end into three parts, and the second slits 6are formed at such positions as to divide the part of the secondpartition segment 4 a or 4 b from the fourth folding line L4 to the tipend into three parts. The lengths of the first slit 5 and the secondslit 6 are substantially one-half of the dimensions w1 and w2 of thefirst partition segments 3 a and 3 b and the second partition segments 4a and 4 b, respectively, in the width direction.

The opening 5 a of the first slit 5 and the opening 6 a of the secondslit 6 have a tapered shape which is increasingly wide toward the openside.

Next, with reference to FIGS. 1 to 5, a procedure for building thepartition 1 according to this embodiment will be described. First, asshown in FIG. 2, the first partition segments 3 a and 3 b are, from thestate in FIG. 1, bent upward perpendicularly along the second foldinglines L2.

Next, from the state in FIG. 2, the first partition segments 3 a and 3 bare bent perpendicularly along the first folding lines L1 in such adirection as to overlap the bottom plate 2. As a result, as shown inFIG. 3, the first partition segments 3 a and 3 b are now erect on thetop face of the bottom plate 2, with the openings 5 a of the first slits5 up, in an L shape as seen in a plan view, and the bottom plate 2 isdivided into three regions by the first partition segments 3 a and 3 b.

Instead, from the state in FIG. 1, the first partition segments 3 a and3 b may be first bent upward perpendicularly along the first foldinglines L1 and then bent perpendicularly in such a direction as to overlapthe bottom plate 2 along the second folding lines L2 to achieve thestate in FIG. 3.

Next, as shown in FIG. 4, the second partition segments 4 a and 4 b are,from the state in FIG. 3, bent upward perpendicularly along the fourthfolding lines L4. Next, from the state in FIG. 4, the second partitionsegments 4 a and 4 b are bent perpendicularly in such a direction as tooverlap the bottom plate 2 along the third folding lines L3. As aresult, the second partition segments 4 a and 4 b intersect with thefirst partition segments 3 a and 3 b with the openings 6 a of the secondslits 6 down.

Then, as shown in FIG. 5, by inserting the second slits 6 (see FIG. 3)of the second partition segments 4 a and 4 b in the first slits 5 of thefirst partition segments 3 a and 3 b, the second partition segments 4 aand 4 b are held erect on the top face of the bottom plate 2 in an Lshape as seen in a plan view. In this way, the partition 1 is built inwhich the bottom plate 2 are divided into nine compartments by the firstpartition segments 3 a and 3 b and the second partition segments 4 a and4 b.

When articles are packed using the partition 1 of this embodiment, asshown in FIG. 6, the partition 1 is arranged inside an outer packing box100. Then, the articles (unillustrated) are put in the nine compartmentsdivided by the side walls of the outer packing box 100 and the partition1, and the outer packing box 100 is sealed to complete the packing ofthe articles.

The partition 1 of this embodiment is built by bending one sheet. Thismakes it possible to reduce the number of components of the partition 1and to make it easier to build. In addition, the partition 1 is in theform of a sheet as shown in FIG. 1 before being built, and thus it ispossible to stack a number of sheets. Thus, taking the stacked sheetsfrom the top one down and assembling partitions 1 helps improve theefficiency of packing. In addition, storing them unbuilt helps reducethe space needed for their storage.

The partition 1 has, not only the first partition segments 3 a and 3 band the second partition segments 4 a and 4 b, but also the bottom plate2 integrated together, and thus no bottom plate (top segment) needs tobe arranged between partitions 1 when a plurality of partitions 1 areused stacked on one another.

The first partition segments 3 a and 3 b and the second partitionsegments 4 a and 4 b are bent in an L shape as seen in a plan view, andthus, compared with in conventional partitions in which partitionsegments in a rectangular strip shape are combined into a lattice, thecompression strength of the first partition segments 3 a and 3 b and thesecond partition segments 4 a and 4 b is higher.

Further, as shown in FIG. 6, when the partition 1 is arranged inside theouter packing box 100, the corners 7 a to 7 d of the first partitionsegments 3 a and 3 b and the second partition segments 4 a and 4 b whichoverlap with the first vertexes 2 c and the second vertexes 2 d of thebottom plate 2 (see FIG. 1) are arranged so as to make contact with orclose to the four corners of the outer packing box 100. This enhancesthe compression strength of the outer packing box 100 in the directionstoward the side faces and toward the top face.

With the partition 1 of this embodiment, it is possible to form ninecompartments and a bottom plate integrally by bending one sheet, andthus it is possible to reduce the number of components that form thepartition 1. It is also possible to effectively prevent the partition 1and the outer packing box 100 from collapsing during transportation andstorage.

In this embodiment, the bottom plate 2 is square, and thus the length ofthe first partition segment 3 a or 3 b and the length of the secondpartition segment 4 a or 4 b are equal. By setting the width-directiondimension of the first partition segment 3 a or 3 b and the secondpartition segment 4 a or 4 b one-third of the length of one side of thebottom plate 2, the partition 1 before being built (a blank board) is,as shown in FIG. 1, substantially in a square shape. Thus, it s possibleto reduce waste when a blank board is punched out of one raw sheetmaterial, and this is advantageous in terms of cost.

FIG. 7 is a developed view of a partition 1 according to a secondembodiment of the present disclosure. In this embodiment, the length ofthe first folding line L1 which divides the bottom plate 2 from thefirst partition segment 3 a or 3 b is shorter than in the firstembodiment, that is, shorter than one-third of the length of the firstside 2 a of the bottom plate 2. The second slits 6 are formed closer tothe fourth folding line L4 and the tip end, respectively, of the secondpartition segment 4 a or 4 b in conformity with the folding position(the second folding line L2) of the first partition segment 3 a or 3 b.In other respect, the structure and the building procedure of thepartition 1 here are similar to those in the first embodiment.

FIG. 8 is a plan view showing the completely built state of thepartition 1 in the second embodiment. In this embodiment, out of thenine compartments divided by the first partition segments 3 a and 3 band the second partition segments 4 a and 4 b, three compartments in therow (middle row) between the first partition segments 3 a and 3 b arelarger than the other compartments. In this way, by changing the lengthof the first folding line L1 and the positions of the second slits 6,the size of any compartments in the row direction (the verticaldirection in FIG. 8, that is, the direction parallel to the secondpartition segments 4 a and 4 b) can be changed.

Here, by changing the length of the first folding line L1 and thepositions of the second slits 6, the size of the compartments in the rowdirection (the vertical direction) is changed. Instead, by changing thelength of the third folding line L3 and the positions of the first slits5, the size of any compartments in the column direction (the horizontaldirection in FIG. 8, that is, the direction parallel to the firstpartition segments 3 a and 3 b) can be changed.

FIG. 9 is a developed view of a partition 1 according to a thirdembodiment of the present disclosure. In this embodiment, the bottomplate 2 is rectangular, and thus the dimension d1 of the first partitionsegments 3 a or 3 b from the second folding line L2 of the firstpartition segment 3 a or 3 b to the tip end is substantially equal tothe length of the second side 2 b (longer side) of the bottom plate 2.The dimension d2 of the second partition segment 4 a or 4 b from thefourth folding line L4 of the second partition segment 4 a or 4 b to thetip end is substantially equal to the length of the first side 2 a(shorter side) of the bottom plate 2. In other respect, the structureand the building procedure of the partition 1 here are similar to thosein the first embodiment.

FIG. 10 is a plan view showing the completely built state of thepartition 1 in the third embodiment. By making the bottom plate 2rectangular as in this embodiment, it is possible to build a partition 1which fits an outer packing box 100 with a rectangular bottom face.

The embodiments described above are in no way meant to limit the presentdisclosure, which thus allows for many modifications and variationswithin the spirit of the present disclosure. For example, the partitions1 described in the above embodiments are preferable examples, and thedetailed structure of the partitions 1 such as the dimensions of thefirst partition segments 3 a and 3 b and the second partition segments 4a and 4 b, and the length and positions of the first slits 5, the secondslits 6, and the folding lines L1 to L4 can be changed according to theshape, size, and the like of the articles to be packed and the outerpacking box 100.

The present disclosure is applicable to partitions formed by bending onesheet. Based on the present disclosure, it is possible to provide apartition which can be easily built by bending one sheet and which canform nine compartments without increasing the number of components, aswell as to provide a packing material having such a partition.

What is claimed is:
 1. A partition comprising: a bottom plate in arectangular shape having a pair of first sides opposite from each otherand a pair of second sides perpendicular to the first sides; a pair offirst partition segments arranged along the pair of first sides; a firstfolding line which extends from each of a pair of first vertexes of thebottom plate located on one diagonal position each other to an end pointlocated on each of the pair of first sides and which connects the bottomplate and each of the pair of first partition segments together, asecond folding line which extends perpendicularly to the first foldingline from the end point of the first folding line to an outer edge ofthe first partition segment; a pair of first slits which are slit fromthe outer edge of each of the pair of first partition segments inward; apair of second partition segments arranged along the pair of secondsides; a third folding line which extends from each of a pair of secondvertexes of the bottom plate located on another diagonal position eachother to an end point on each of the pair of second sides and whichconnects the bottom plate and each of the pair of second partitionsegments together, a fourth folding line which extends perpendicularlyto the third folding line from the end points of the third folding lineto an inner edge of the second partition segments; and a pair of secondslits which are slit from the inner edge of each of the pair of secondpartition segments outward, wherein the pair of first partition segmentsand the pair of second partition segments are held erect with respect tothe bottom plate in an L shape as seen in a plan view by bending each ofthe pair of first partition segments perpendicularly along the firstfolding lines and the second folding lines to make the first partitionsegments erect in an L shape and to arrange each of the pair of firstpartition segments on the bottom plate, bending each of the pair ofsecond partition segments perpendicularly along the third folding linesand the fourth folding lines to make the second partition segments erectin an L shape and to arrange each of the pair of second partitionsegments on the bottom plate perpendicularly to the pair of firstpartition segments, and making the pair of second slits engage with thepair of first slits each other.
 2. The partition according to claim 1,wherein the pair of first slits and the pair of second slits have atapered shape which is increasingly wide toward an open side.
 3. Thepartition according to claim 1, wherein the bottom plate is square wherethe pair of first sides and the pair of second sides have an equallength, a dimension of each of the first partition segments from thesecond folding line to tip ends thereof and a dimension of each of thepair of second partition segments from the fourth folding line to tipends thereof are equal to a length of the pair of first sides of thebottom plate, and a dimension of the pair of first partition segmentsand the pair of second partition segments in a width directionorthogonal to the pair of first sides is one-third of the length of thepair of first sides.
 4. The partition according to claim 1, whereinlengths of compartments divided by the pair of first partition segmentsand the pair of second partition segments in a direction parallel to thepair of second partition segments are changeable by changing the lengthof the first folding lines and the positions of the pair of secondslits.
 5. The partition according to claim 1, wherein lengths ofcompartments divided by the pair of first partition segments and thepair of second partition segments in a direction parallel to the pair offirst partition segments are changeable by changing the length of thethird folding lines and the positions of the pair of first slits.
 6. Apacking material comprising: the partition according to claim 1; and anouter packing box in a rectangular parallelepiped shape in which thepartition is arranged.
 7. The packing material according to claim 6,wherein the corners of the pair of first partition segments and the pairof second partition segments which are located above the pair of firstvertexes and the pair of second vertexes of the bottom plate arearranged so as to make contact with or close to upper four corners ofthe outer packing box.